Pega Platform supports single sign-on. A person or external system that is authenticated by an external application can be authenticated without providing a second user ID and password. The single sign-on feature is implemented through a security token, which is referenced by an application ID data instance.
An Application ID instance contributes information to the construction and evaluation of security tokens. It provides one password for a group of users who are authenticated externally. It also determines the amount of time allowed between the time a security token is created and the time that the token is evaluated (known as lag time).
Application ID data instances, which support authentication, are different from application rules, which provide the rulesets and other characteristics of a single application.
The Data-Admin-AppID class contains Application ID data instances. They are part of the Security category.